Betelgeuse
58Alp Ori
Betelgeuse is a M-type (Red) star located in the constellation Orion. It carries the designation 58Alp Ori.
Located approximately 497.9 light-years from Earth, Betelgeuse resides within the broader disk of our Milky Way galaxy.
Betelgeuse is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
Betelgeuse has an apparent magnitude of +0.45, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its red hue, which corresponds to a B-V color index of +1.500.
物理特性
| 光谱类型 | Class M — M-type (Red) |
| 色指数 (B−V) | 1.500 |
观测
| 视星等 | +0.45 |
| 绝对星等 | -5.47 |
| 距离 | 498 ly |
| 星座 | Orion |
位置
| 赤经 | 5h 55.17m |
| 赤纬 | 7° 24.42′ |
Related Chemistry
Explore the chemical elements connected to Betelgeuse on our sister site ChemFYI.
TiO molecular bands dominate M-type supergiant spectra
Iron-group elements produced during advanced shell burning
Abundant in M-type atmospheres, forming TiO and H₂O molecules
Carbon-12 synthesised via the triple-alpha process in the core
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